Agitator



L. J. WAHL yAGI'JJMOR Filed May '7. 1925 Patented Mar. S, 1929.

UNITED STATES' LEO J'. WAHL,

lor" STERLING, ILLINoIs'AssIGNoR To? WAHL *CLIPIER ooRPoRATroN or STERLING, ILLINOIS, A CORPORATION or ILLINoIs.

ligoaeze PATE N y ifi@ c AGITATOR.

Application iled May 7, 1926. Serial No. 107,514.

My invention relates to agitators and has for its object the provision of means whereby the contents of a receptacle may be suitably agitated.

5 More particularly is my invention adapted for use in connection with the preparation of mixed drinks, such for instance as are sold at soda fountains. It is customary, in the preparation ofl such drinks, to place i0 various diEerent ingredients, some in liquidv form into a receptacle, and to thereafter agitate said contents so that they become thoroughly mixed and form a more or less homogeneous whole..

in 1t is an object of my invention to provide simplified means for accomplishing this result. 1 have found out after experimentation that ll am able to secure the proper agitation of such material in order to bring about the proper mixture by the use of a rapidly `oscillating element, which rapidly oscillating element is actuated by an electro-magnet supplied with intermittent current. lin the preferred form of the device, 2

nating current which may be of the `customary frequency of sixty cycles per second so that the agitating element under the control of this electro-magnet makes 120 oscillations per second. This relatively high speed of agitation 1 find serves the purpose of producing an adequate mixture of ingredients such as those outlined.

My improved device furthermore produces a structure in which the agitator moves crosswise of the liquid and does not rotate with the liquid and for this reason, 'I am able to obtain a better mixture of the ingredients than has theretofore been possible.

It is a further object of my invention to so arrange the agitator that it, in general, cuts the liquid without producing any splashing e'eet.

Tn my copending application, Serial No. 107 ,513 iled May 7, 1926, 1 show a modified form of this invention in whichthe agitating element moves in a different manner to that disclosed in this present application.

Twill describe one form which my invention may take more in detail together with certain modifications in connection with the accompanying drawing illustrating the same in which;

Fig. 1 is a side view of an apparatus constructed in accordance With my invention5` ably spring-like bar 2O and the this electro-magnet is supplied with alter-y Fig. 2 is a fragmentary front view there Fig. 4 is a similar sectional view showing a modified form of agitating bar; and

Fig. 5 is a view similar to Fig. 4 of a further modification. J

By referring more particularly to Figs. 1, 2 and 3, I show a base 10 provided with a standard 11, which standard has suitable means for supporting a receptacle 12. These means in the form shown, consist of a bar 13 having the inturned lip 14 at the top thereof and having a projecting toe portion 15 at the bottom thereof. rIhe bar 13 has a rearwardly extending lug 16 by means of which it is pivotally supported upon a lug '17 through the agency of the screw 18, the

proper 21. so

The spring-like bar 2O carries an arma-v ture 22 which is in cooperative relation with an electro-magnet 23. This electro-magnet is mounted upon a bracket 24 suitably fastened to the standard 11. Lead in wires 25 supply the current to the electro-magnet 23. This electro-magnet 23 preferably has the two coils as shown united by. akeeper at their rear extremity, which keeper in this particular, forms part of bracket 24. The agitator proper 21 may be a Hat strip of material as shown, but preferably has at its lower extremity, a piece of resilient metal extending at right angles to the agitator proper 21, the elements 21 and 26 forming 95 the agitator proper. The spring bar 2O is mounted at the outward extremity of the bracket 19 preferably through the agency of the screw 27. Y

n order to adjust the element 20 so that 10o it may respond best to the frequency of the impulses passing through the electro-magnet 23, l provide suitable adjusting means whereby the response of this element 20 may be regulated. These adjusting means coningly mounted lug 31 through which adjust,- ing screws 32 and 33 are threaded. It will readily be seen that by adjusting the screws 32 and 33 or either one of them, that the natural frequency of the element 2O may be modified or regulated as occasion requires.

In the operation of the device, it Will be seen that the armature 22, which is normally quiescent at a point slightly removed from the pole pieces 34 of the electro-magnet, Will be drawn toward the electro-magnet with every pulsation, Whether that pulsation be positive or negative, and it Will be returned to and beyond its natural position between pulsations or during every recession by means of the natural spring action of the element 20 and the spring action of the corresponding elements 28 and 29. Assuming that" the magnet is being supplied With .60 cycle alternating current, which means 120 pulsations, the agitator proper 21 together* with its toe or lip 26, will travel backwardly and forwardly 120 times per second. I find that this movement of the elements as described is sufiicient to obtain the necessary rotation and mixture of ingredients such 'as those hereinbefore outlined kwwhen placed Within the receptacle l2.

In Fig. 4 I show a modified form of the invention in that the agitator bar 21 has a triangular cross-section. I find that this triangular cross-section adapts itself very Well for the purposes of effecting a proper mixture. In fact, there are many different constructions which can be employed in connection with the agitator bar Which will serve the purpose, another one being illustrated in Fig. 5 in which this agitator bar 2].b is shown as having a cross section in the form of a half-ring.

From what has been thus described, the nature of my invention will be readily clear to those skilled in the art and it Will also be clear that many modifications may be made Without departing from the spirit of my invention as covered by the appended claims.

Having thus described my invention, What I desire to claim and secure by United States Letters Patent is: a

l. In a device of the character described having a standard and a support adapted to carry a receptacle, means for agitating the contents of said receptacle, said means comprising an electro-magnet, a cooperating vibratory armature therefor, an agitator, and spring means for carrying said armature and agitator, said agitator being adapted to project into said receptacle.

2. In a device of the character described having a standard and a support thereon adapted to carry a receptacle, means project- -ing in partinto said receptacle for agitating the contents thereof, said means including an electro-magnet, a cooperating vibratory armature therefor, an agitator, sprlng means for carrying said armature and agitator and means for adjusting the tension of said spring means. Y

3. In a device of the character described having a standard and. a support thereon adapted to carry a receptacle, means projecting in part into said receptacle for agitating the contents thereof, said means including an electro-magnet, a cooperating vibratory armature and an agitator carried by said armature, said agitator moving cross- Wise of the liquid. Q

4. In a device of the character described having a standardand a support thereon adapted to carry a receptacle, means for agi- -tating the contents of said receptacle, said means comprising an electro-magnet, a cooperating vibratory armature therefor, an agitator, and spring means for carrying said armature and agitator, said agitator being adapted to project into said receptacle, said agitator moving crosswise of the liquid.

5. In a device of the character described having a standard and a support thereon adapted to carry a receptacle, means projecting in part into said receptacle for agitating the contents thereof, said means including an electro-magnet, a cooperating vibratory armature therefor, an agitator, spring means for carrying said armature and agitator and means for adjusting the tension of said spring means, said agitator moving crosswise of the liquid.

6. In a device of the character described having a standard and a support thereon adapted to carry a receptacle, electro-magnetically controlled means for agitating the contents of said receptacle, said electro-magnetically controlled means extending down- Wardly into and moving/transversely of the li uid.

A device of the character described comprising means for supporting a receptacle and means for agitatm the contents of said receptacle, said agitatlng means including a stem projecting into said receptacle and means for oscillating said stem, said stem having thin side edges facing in the direction of movement thereof said edges acting as cutters to cut up semi solid material in the contents of said receptacle.

8. A device of the character described comprising means for supporting a receptacle and means for agitating the contents of said receptacle, said agitating means including av thin substantially bar-shaped stem projecting into said receptacle together with electro-magnetic means for oscillating the same, said stem oscillating in the direction of its greater Width.

9. In a device of the character described having a standard and means for supporting a receptacle adjacent thereto, means on said standard for agitating the contents of said receptacle, said agitating means in- 25 for agitatin cluding a thin strip extending downwardly into said receptacle, an agitator blade'projecting laterally from the lower end of said blade and means for vibrating said strip and blade in a direction transverse to said ing a receptacle adjacent thereto, means on said'standard for agitating the contents of said receptacle, said agitating means including a thin strip extending downwardly into said receptacle, anagitator blade projecting laterally from the lower end of said blade and means for vibrating said strip -and blade in a direction transverse to said blade and in the direction of greatest width of said strip, said` agitator blade being substantially vertical.

11. In a device of the character described having a standard and asupport adapted to carry a receptacle, means carried by said standard and projecting into said receptacle the contents thereof, said means including an electromagnet, a cooperating vibratory armature and an agitator controlled by said armature, said lagitator moving substantially radially toward and away from the vertical center line of said receptacle.

12. In a device of the character described having a standard and a support adapted to carry a receptacle, means carried by said standard and projecting into said receptacle for agitating the contents thereof, said means including an electro-magnet, a cooperating vibratory armature and an agitator controlled by said armature, said agitator moving substantially radially toward and away from the vertical center line of said' receptacle, and having means thereon for causing rotation of the contents of said receptacle.

13. In a device of the character described having a standard and a support adapted to carry a receptacle, means carried by said standard and projecting into said receptacle for agitating the contents thereof, said means including an agitator arm supported from said standard and depending into said receptacle, said arm being oscillatable about its support to and fro within the receptacle and means on said standard for causing said arml to oscillate, said arm having means thereon within said receptacle for causing a LEo J. WAHL. 

